Local anesthesia uses medicine to block sensations of pain from a specific area of the body. Local anesthetics are usually given by injection into the body area that needs to be anesthetized. They are not injected into the bloodstream (intravenous, IV).
Local anesthesia can also be applied directly to the skin or mucous membranes as a liquid or gel. This is called topical anesthesia. Topical anesthesia is used for very minor procedures inside the mouth, gums, eardrum, or nose and on the surface of the skin, eye, anus, or vagina.
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A surgery can be done in a short time and you will go home soon after.
A surgery does not require unconsciousness or extreme muscle relaxation.
Risks and complications from local anesthesia
When used properly, local anesthetics are safe and have few major side effects. But in high doses, local anesthetics can have toxic effects caused by being absorbed through the bloodstream into the rest of the body (systemic toxicity). This may significantly affect your heart, breathing, or brain function. Because of these potential toxic effects, equipment for emergency care must be immediately available when local anesthetics are used.